PLS HELP ASAP

WILL MARK BRAINLIEST

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.